Lay Health Worker Interventions in Rheumatology: A Scoping Review

To determine next steps for lay health worker (LHW) intervention research, specifically in patients with rheumatic musculoskeletal diseases (RMDs), there is a need to establish what strategies have been effective for chronic disease management thus far. The goal of this scoping review is to collate the literature of LHW interventions for adults with RMDs to inform next steps for LHW research.

A comprehensive literature search was performed in the following databases from inception to September 2021: Ovid Medline, Ovid Embase, CINAHL, PsycINFO, and The Cochrane Library. Studies retrieved were then screened for eligibility against predefined inclusion and exclusion criteria.

Twenty-two articles were eligible and included in this review. The most common RMDs studied, not mutually exclusive, were osteoarthritis (n = 13), rheumatoid arthritis (n = 9), and unspecified or other RMD (n = 14). Most studies had a homogenous patient population, enrolling White, non-Hispanic, or Latina women over the age of 60 (n = 13). Eight studies observed statistically significant results in the intervention arm compared with the control. Only one of these studies exhibited sustained treatment effects past one year.

There are not enough data to conclude if LHW interventions have a positive, null, or negative effect on patients with RMDs. Future LHW interventions should specify a priori hypotheses, be powered to detect statistical significance for primary outcomes, employ a theoretical framework, include an active control, describe training protocols for LHWs, and increase minority representation to establish the effectiveness of LHWs for patients with RMDs.